Question

The Braille code used by blind people uses dot patterns for words. How many dot patterns are used for this code?
(A) 52
(B) 63
(C) 48
(D) 26

Answer 1

Hint: Louis Braille invented the braille code in the 19th century. In this code there were six projected dots from left to right inside a rectangle. A person that has to read has to move the finger tips from left to right over the projected dotted patterns. That rectangular block is like a 3 by 2 matrix and has 3 dotted patterns per column.

Complete step by step solution:
Braille is a globally accepted format for writing used for blind people, which uses dotted patterns for words and it comprises a code having 63 characters, each comprising one to six raised dots arranged in a six-place matrix. These Braille parameters are marked deep in lines on paper and read by moving the fingers slightly over the coded manuscript.

Braille models are also being accepted and created for mathematical and symphony notation.

Therefore, the correct option is (B).

Note: The slate and an equipment called stylus are the tools used to write braille. A plastic guided slate hinged at one end is used. A slate can be of different shapes and sizes. A stylus is a 3 inches long small tool with a metal dot at one end and a wooden knob at the other end with a plastic head. A slate consists of card stock paper and the stylus is used to punch holes in the paper. The holes that are punched are the projected dots that can be only read by touching.